translator: Fix builtin function emulator use-after-free.

We were calling the global pool allocator in the builtin function
emulator, which would lead to us freeing TTypes that were still
referenced. Fix this by using the TCache which was designed for
such a purpose, and locking the allocator around the builtin
function emulator to try and prevent similar bugs from creeping
in.

Eventually we would like to get rid of the global allocator and
replace it with different pools in different contexts, which are
managed more safely.

BUG=620937

Change-Id: If501ff6ea4d9bf8a2b8f89f2c94a01386f79ee3a
Reviewed-on: https://chromium-review.googlesource.com/353671
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/360249
Reviewed-by: Jamie Madill <jmadill@chromium.org>
4 files changed
tree: ec00aebf195b2ab05e3aa1846fb0d3ea75df2380
  1. build/
  2. doc/
  3. extensions/
  4. include/
  5. infra/
  6. samples/
  7. scripts/
  8. src/
  9. util/
  10. .clang-format
  11. .gitattributes
  12. .gitignore
  13. angle.isolate
  14. angle_on_all_platforms.isolate
  15. AUTHORS
  16. BUILD.gn
  17. codereview.settings
  18. CONTRIBUTORS
  19. DEPS
  20. DEPS.chromium
  21. LICENSE
  22. README.chromium
  23. README.md
README.md

#ANGLE The goal of ANGLE is to allow users of multiple operating systems to seamlessly run WebGL and other OpenGL ES content by translating OpenGL ES API calls to one of the hardware-supported APIs available for that platform. ANGLE currently provides translation from OpenGL ES 2.0 to desktop OpenGL, Direct3D 9, and Direct3D 11. Support for translation from OpenGL ES 3.0 to all of these APIs is nearing completion, and future plans include enabling validated ES-to-ES support.

Direct3D 9Direct3D 11Desktop GLGL ES
OpenGL ES 2.0completecompletecompleteplanned
OpenGL ES 3.0nearing completionnearing completionplanned
[Level of OpenGL ES support via backing renderers]
Direct3D 9Direct3D 11Desktop GL
Windows***
Linux*
Mac OS Xin progress
[Platform support via backing renderers]

ANGLE v1.0.772 was certified compliant by passing the ES 2.0.3 conformance tests in October 2011. ANGLE also provides an implementation of the EGL 1.4 specification.

ANGLE is used as the default WebGL backend for both Google Chrome and Mozilla Firefox on Windows platforms. Chrome uses ANGLE for all graphics rendering on Windows, including the accelerated Canvas2D implementation and the Native Client sandbox environment.

Portions of the ANGLE shader compiler are used as a shader validator and translator by WebGL implementations across multiple platforms. It is used on Mac OS X, Linux, and in mobile variants of the browsers. Having one shader validator helps to ensure that a consistent set of GLSL ES shaders are accepted across browsers and platforms. The shader translator can be used to translate shaders to other shading languages, and to optionally apply shader modifications to work around bugs or quirks in the native graphics drivers. The translator targets Desktop GLSL, Direct3D HLSL, and even ESSL for native GLES2 platforms.

##Browsing Browse ANGLE's source in the repository

##Building View the Dev setup instructions. For generating a Windows Store version of ANGLE view the Windows Store instructions

##Contributing